/*
** Copyright (C) 2010 Calin Radoni
**
** This file is part of CHScanner.
**
** CHScanner is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** CHScanner is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with CHScanner. If not, see <http://www.gnu.org/licenses/>.
*/

#include "StdAfx.h"
#include "MDHCPOption.h"

//---------------------------------------------------------------------------

MDHCPOption::MDHCPOption(void)
{
	optionId   = 0;
	optionLen  = 0;
	optionData = NULL;
}

MDHCPOption::~MDHCPOption(void)
{
	CleanUp();
}

//---------------------------------------------------------------------------

void MDHCPOption::CleanUp(void)
{
	if(optionData!=NULL){
		delete[] optionData;
		optionData = NULL;
	}
	optionLen = 0;
}

//---------------------------------------------------------------------------

void MDHCPOption::Initialize(void)
{
	optionId = 0;
	CleanUp();
}

void MDHCPOption::LoadFromPointer(MDHCPOption* optIn)
{
	Initialize();
	if(optIn==NULL) return;
	if(optIn->optionData==NULL) return;

	try{
		optionData = new BYTE[optIn->optionLen];
	}
	catch(...){
		optionData = NULL;
	}
	if(optionData==NULL) return;

	optionId  = optIn->optionId;
	optionLen = optIn->optionLen;
	memcpy(optionData, optIn->optionData, optionLen);
}

//---------------------------------------------------------------------------

bool MDHCPOption::Create(BYTE idIn, BYTE sizeIn)
{
	CleanUp();

	if(sizeIn<=0) return false;

	try{
		optionData = new BYTE[sizeIn];
	}
	catch(...){
		optionData = NULL;
	}
	if(optionData==NULL) return false;

	optionId = idIn;
	optionLen = (BYTE)sizeIn;

	return true;
}

//---------------------------------------------------------------------------
